312 Rockwell Automation Publication 750-PM001N-EN-P - February 2017
Chapter 6 Troubleshooting
64 Drive OverLoad Alarm 1 Y P940 [Drive OL Count] has exceeded 50 % but is less than 100 %.
Resettable Fault Coast P940 [Drive OL Count] has exceeded 100 %. Reduce the mechanical
load on the drive.
Inverter fiber-optic connection is not detected on Frame 8 drive.
This fault can occur on power-up if the control detects that no inverter
is detected via the fiber-optic communication on a Frame 8 drive.
67 Pump Off Alarm 1 Pump Off condition has been detected.
71
72
73
74
75
76
Port 1 Adapter
Port 2 Adapter
Port 3 Adapter
Port 4 Adapter
Port 5 Adapter
Port 6 Adapter
Resettable Fault Coast The DPI communications option has a fault.
See device event queue.
77 IR Volts Range Alarm 2 The value for P73 [IR Voltage Drop], which is calculated from the
motor nameplate data, is not within the range of acceptable values,
as determined by the Calculated Autotune procedure.
Check the motor nameplate data against parameters P25 [Motor NP
Volts] through P30 [Motor NP Power].
Resettable Fault Coast The measured value for P73 [IR Voltage Drop] is not within the range
of acceptable values, as determined by the Static or Rotate Autotune
procedure.
78 FluxAmpsRef Rang Alarm 2 The value for flux amps exceeds the value programmed in P26 [Motor
NP Amps], as calculated by the Autotune procedure.
Check motor nameplate data against parameters P25 [Motor NP
Volts] through P30 [Motor NP Power].
Resettable Fault Coast The value for flux amps exceeds the value programmed in P26 [Motor
NP Amps], as measured by the Static or Rotate Autotune procedure.
79 Excessive Load Resettable Fault Coast The motor did not come up to speed in the allotted time during
Autotune.
80 AutoTune Aborted Resettable Fault Coast The Autotune function was manually canceled or a fault occurred.
81
82
83
84
85
86
Port 1 DPI Loss
Port 2 DPI Loss
Port 3 DPI Loss
Port 4 DPI Loss
Port 5 DPI Loss
Port 6 DPI Loss
Resettable Fault Coast 324
[Logic Mask] The DPI port stopped communicating.
Check connections and drive grounding.
87 IXo VoltageRange Alarm 2 The default for P70 [Autotune] is 1 “Calculate” and the voltage that is
calculated for motor inductive impedance exceeds 25 % of the value
of P25 [Motor NP Volts].
Resettable Fault Coast P70 [Autotune] is set to 2 “Static Tune” or 3 “Rotate Tune” and the
voltage that is measured for motor inductive impedance exceeds 25
% of the value of P25 [Motor NP Volts].
91 Pri VelFdbk Loss Configurable Note: See option module
for configuration
parameter number
A Feedback Loss has been detected for the source of P127 [Pri Vel
Feedback]. The feedback loss could be due to a problem detected by
the feedback option module selected by P125 [Pri Vel Fdbk Sel] or due
to a loss in communication between the feedback option module and
main control board. The source of primary velocity feedback must be
configured not to fault if the feedback loss switchover feature is used.
93 Hw Enable Check Resettable Fault Coast The hardware enable is disabled (a jumper is installed) but indicates
not enabled.
94 Alt VelFdbk Loss Configurable Note: See option module
for configuration
parameter number
A Feedback Loss has been detected for the source of P128 [Alt Vel
Fdbk Sel]. The feedback loss could be due to a problem detected by
the feedback option module selected by P128 [Alt Vel Fdbk Sel], or
due to a loss in communication between the feedback option module
and main control board.
Event
No.
Fault/Alarm Text Type Fault
Action
Configuration
Parameter
Auto
Reset
Description/Action(s)
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